I have it modded with in game mods, Whirlygig for better turning and thrust, Nanotube for less Drag and Mass, Traction for increased Shield recharge rate and less recharge delay. So its quite fast with its travel drive, and all turrets have Expediter for better rotation/range/damage.
Put it on Repeat Orders, and then gave it "Attack all enemies" about five times to cover a large area regularly mined, which attracts loads of Kha'ak.
"Attack all enemies" on this ship, the area of coverage radius is larger than usual, so having multiples of this command on repeat covers a lot of the sector.
I'm finding I dont need anything else on patrol in this sector as its doing a marvellous job of swatting all the Kha'ak attacks away, leaving my miners in peace, as the Sapporo gets around all of the repeat orders quickly enough.
I'm going to have to topup the Barrage missiles at some point, but before I do that I'm going to see how it performs in the same role with just its modified turrets. Really like the sound of the barrage missiles firing .. duffduff duffduff duffduff

Thats my use for it anyway, it doesn't need any escorts in this role.
Only thing its not good at in the same role is picking up drops - I tried Repeat Orders to include a "Collect drops" after each "Attack all enemies", but the cargo drones take too much time recovering which lessens its effectiveness covering the whole sector, so now its just on Repeat orders Attack all enemies.
Edit : Reference the OP and it being hard to obtain - I just used a single Asgard, fully kitted out with Beams on all turrets with the Slasher mod for much better beam damage. First I located the Ravager, and the Asgard main weapon took that out in about 3 seconds. Waves of Kha'ak as you attack the Kha'ak installation were no problem, I just slowly edged it in there using the main weapon on the station modules while the beam turrets took out all the fighters. Once the station was deceased, the Kha'ak keep respawning in this area, so I positioned the Asgard sideways near the Sapporo as a shield to all attacks, so that all incoming spawns were again handled by the beams before they got near to the Sapporo, then got a Yasur to quickly fly in the other side of the Sapporo, teleported over to the Yasur, claimed the Sapporo and personally flew it out of the area while the Asgard was still swatting flies.